Light-emitting device having a patterned surface
A light-emitting device comprises a substrate having a top surface and a plurality of patterned units protruding from the top surface; and a light-emitting stack formed on the substrate and having an active layer with a first surface substantially parallel to the top surface; wherein one of the plur...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A light-emitting device comprises a substrate having a top surface and a plurality of patterned units protruding from the top surface; and a light-emitting stack formed on the substrate and having an active layer with a first surface substantially parallel to the top surface; wherein one of the plurality of patterned units has a vertex, a first inclined surface, and a second inclined surface, and the first inclined surface and the second inclined surface commonly join at the vertex from a cross-sectional view of the light-emitting device. |
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